Sewing machine



May 2, 1933. H Wll-(RAGv y 1,906,623

- SEWING' MACHINE f//s HTrom/is.

May 2, 1933. H. w. KRAG SEWING MACHINE Filed sept. 8. 1951 2 sheets-sheet 2 /N VAN/TOR.'

www'

f Patentedl May 2` 179.33 v

.perulerlx te shoe vSole .Sewing maechinesof @be klidewhren thesbitche are; loeetedythe @Ole by :"mensf. 0f-...ang adjustable. edge; .gage .'vhChXiSfso positioned wthereference-,to `the 0111er, toremove andgreplaee the awl. The 10 principal object. ofthe present inventonkSiO plrfoyide .af machine .of the .above t'ypewith an. -Y

adj lu stable; edge gageiwhich will permit nlomleandreplacement of.'lthefa wl. without which Ineens; mayI be operated Htoi .permit'zthe edge gage; to swing.A heyondfl such l .operaiye y range/,pto an.y nopertveeplosition .Kthat is; clear @Othergobjeetss are :simplicity and eheap'ness. of con'struotio11 ease offopemton andeomp'actnessfof. design of fthef lawl/ securing means.

the.construct-ion,V combinata ns ndfarral'lge mentsz'of parts hereinafter lfl-lclescribed' andV l Y 1 theifront upper-women claimed.

part of `this .ispleiqation' Land "wherein jlike synjhols refer yto llike partel Wherever they Figllii's afsde vilewfofafportion ofa sole Sewmgmchine provlded Wluthl an; edge" f @heee-1151.@ iyiewztheeef;

the.: ed@ f A nppnatonmea; .september s, 19:11.`

lewisimilarf ieirieflehewing; wlm'g.- Qlfwerldly hewn@ ite ive. Lrenee .Se the@ @Cees .may be... .had tOi thee-Wl seeuring deviee'f j j.; L rtiealSection 'on lthe line I5 5* 1..

curedjtmthe* npperfarmfofthe rock leverll, gfllfige. 6ii5,a,:horizontal1seetion:'on.the line.v n

onon theline- NITEQ f seioemqmmmf `shoe sole sewing meehineof-the'euryed needle and ewMype Acomprsinge; Stiwher head la :mj-.feed slide 2Asldab'ly supportedfinrsaid l 55 1 r: l i :y 1 He. 15.. l .lnyxjinyentlonf shown 1n Connectlon. with@ vbolimffv a-ndfnut-, to-ameseillatory awlxholdel inthe form off a segmentfgear lthat smounte. ed orne-rk longitudnaleshaft 7 in -rtheipper endV of Said feed Islide,- lhe rlgtlaellnle-.jslalso(1x10; vided.- with, gnedgegage 8, which is loeated between. :the avvlv -3 v. and fthe .Stitoher headfil;

forfguidng the ishoe--,s,o le by icontaetwithfanf Y, edge thereo; and: themaehne isalsopcwvled withamsruitable shee guard .9,5 Whehis located i111 fnont of leapid Wl-fami isladfapted fonmovee ment with seid edge gegefg .v'Tfhe veonsilruetio ofythe -fshoe .,Asoleysewing V,machine ithns far de-l Slibedis .Well knogwn and ibisV considered une 'necessary-toillushagtezitinfdetwil. jffzl.

AsV shown inthe drawing's,-1tl`1e1edgegage''(8.y andl lshoe guard f 9; forms; rpart of.y anfnttch mene onvfxture comprising a, he)rz0nizal-lydie',-vv peseid` -lfbrelcket 1 member Y.10g-of 4subsktmtiall'y angle-shaped Crosseeotionf which isl ttyedf orr fof l the; stitcherff head with ite-topflangeoveqslappin'g theiadjxient base portion'oithe feedlslideQ for 'retaining' said portign in the Slidewayprovided rthere.;V for( inlsaid f l stiteheryhead;y The :top r flange of kthle.angle-shapedbreokeirlO is removably se.y

lthe? Ineens/off Preferably plyingoilto{theeOOperatingsurfanesof sa'id' flenge'and by :means ofy screws lZ hat extend threugh-l by fpelmitting;

mik

'slots in Said gage, there@ vertical: adjustment-of -s'aid1 edge gage- Theshoeguandf) isfse'eured tothe 'f upper yerm'of the rock lever'l by means of ,isl journaled therefor on the front face of the vertical fla-nge of the angle bracket 10. One end ofV screws 18, the lower one of which extends through an arcuate slot 19 in said guard having a curvature which permits limited adjustment of the shoe guard about the axis of the uppermost screw.

The rock lever 13 is actuated by means of a horizontally disposed crank shaft 20 which in split bearings 21 provided bearings and the crank shaft 20 journaled therein sufficient to prevent rotation of they crank shaft by the pressure of the shoeY against the edge gage 9. The crank shaft 2() is provided at its other end with a hand lever 27 yhaving a split `hub 28 which is rigidly portion of one wall of the split in the hub 28 clamped to said shaft by means of a clamp screw 29. By this arrangement, edge gage 8 may be adjusted to locate the stitches the desired distance from the edge of the shoe sole by swinging the hand'lever 27, thereby rocking the. crank shaft 20 which, by reason of its crank pin connection 22 with the slide block 23in the lower `arm of the rock lever 13, causes said rock lever to pivot in its axis and swing the edge gage on 'its upper arm towards or away from the awl 35- j The normal operative range of the edge gagek is defined by means of a horizontally disposed stop pin 30 which is mounted in the depending flange of the bracket 10 for cooperation with two circumferentially spaced radially extending shoulder portions l31 andv 32, respectively, formed on the hub 28 ofthe hand lever 27. The shoulder 31 abuts against the stop pin 30 and limitsthe outward swing ing movement of the hand lever 27 and the other shoulder 32 abuts against the said stop )in and limits the inward movement ofthe of said handlever the inner end'p'ortiojn of the other wall being cuty away so as to clear the adjacent end of said pin. The stop pin 30 is mount-ed for axial sliding movement in a horizontal bore provided' therefor'in the lowerend of the vertical flange of the bracket 10 and is normally held in the path of the shoulders 31 and 32 on'the hub 28 of the hand lever 27 by means ofa coil spring 33 mounted inj said bore between the inner end thereof and theinner end of said pin.v 'As shown in the drawings the stop pin 30 is provided with a radi-ally projecting manually operable piu (rages a block 23 that is mounted in a longi-I 34 which projects through a notch 35 provided therefor' in the bracket. One wall of said notch is provided with a cam surface 35a adapted to force the stop pin 30 inwardly clear of the hand lever 27 when the radial pin 34 is swung downwardly along said cam surface.

As shown in the drawings, the edge gage 8 operates between the awl 3 and the feed slide 2'; and, in order to prevent damage to the machinery, the ynormal operative range of said edge gage is limited so that the gage cannot be' swung outwardly into the path of said awl or inwardly into the path of said feed slide. This adjustment of said gage is accomplished preferably by first swinging the hand lever 27 outwardly until the shoulder 3l abuts against the stop pin 30, then releasing said hand lever from the crank shaft 20 by loosening the clamping screw 29 and then inserting a pin wrench in a radial hole 3G 'provided therefor in the head 20a of said crank shaft and rotating said shaft to bring the edge gage 8 the desireddistanee from the awl 3. vThe hand lever 27 is then locked to the crank shaft 20'by tightening the clamp screw 29. With the parts thus adjusted, the rear position of the edge gage 8 is reached when the hand lever 27 is swung rearwardly with the shoulder 32 on its hub 28 abutting against `the stop pin 30. In this position of the hand lever, the edge gage clears the feed slide and the crank pin 22 is preferably at the limit of its inwardmovement, whereby said edge gage will-always clear the feed slide regardless of the position of the hand lever relative to said cra-nk pin. As stated above, the normal operative range of theedge gage is defined by the shoulders 31 and 32 on the hand lever 27. However, such normal op'- erative range may be varied by releasing the hand lever 27 from the crank shaft and by rotating said crank shaft relative to Vsaid e hand lever to changethe position of the crank pin 22 relative to the shoulders 31 and 32. With this arrangement, the throw of the edge gage may be varied without changing the angular movementV of the crank pin.

`As stated above, the edge gage is, at all points of its normal operative range, located in front of the awl clamping nut 5 and thus prevents access to said nut when it is desired to` remove and replace the awl 3. However, access may be readily had to the awl clamping nut 5 by releasing the stop pin 30, which defines the normal operative range of the edge gage, and then swinging the hand lever 427 outwardly until the crank pin 22 has Vreached the limit of its outward movement,

`- '1. In a sewing. machine, an awl, securingy means therefor, an edgek gage 'pivotally mounted on said machine` for swinglngmove-e` ment across lthe securingmeans for said awly to vary the distance between the latter andy the edge of the work, means for swinging said edge gage, means for defining the normal ope edge` gage, andvmeans for releasing said lastv erative range of swinging movement of said mentioned means to permit said ledge gage to swing beyond itsv normal operative range to i permit access to be hadto saidawl securing means. e v e f f n 2. Ina sewlng machine, an awl, an yedge gage pivotally mounted on said machme adjacent to said awl for varying the distance` betweenk the latter and the work, mea-ns ,fork varying ythe normali operative range of such pivotal movement. of said `edge gage, and means for permitting said edge gage to swing beyond its normal operative range of pivotal l movement to an inoperative position.V

kas'

3. In a lsewing machine, anawl, an edge gage lmounted on said machine for' swinging movement relativetosaid awl to determine the position ofthe edge of the lwork relative e to said awl, a stop forl defining the normal operative range of swinging movementy of ysaid edge gage, andmea-ns for releasing said -stop to permit said edge `gage to swing kbee yond its `normal operative range.

4." Ina sewing machine, an awl, securing means therefor, an edge gage mounted on ysaid machine for swingingmovement across the securing means for said kawl to position the edge ofthe work rela-tive-tosaid awl, a'

stop for defining the normal operative range l of said edge gage,fand means for releasing said stoptopermitsaid edge gage to swing beyond itsnormaloperative range far enough to permit access to be had to the awl securing means.-

' v 5..In a sewing machine,-anawl, securing means'therefo'r, .an edge'gage mounted ony saidmacbine for swinging movement across the securing kmeans for said awl to vary vthe distance between said awl and said edge gage, a stop for defining the normal operative range of such? swingingmovement of said edgeA gage, means for varying the normal operative rangeiof such swingingmovement of said redgeg'age, and means for releasingsaid n.

, stop to permit said-edge gage to swing beyond its normal operative range of swinging movement. e

.lf-ifi ayseiiignthifieee' vilfscune means, therefor, lanv edgejgage naar on said machine 4for swinging movement across step fer denhaag the wenn Operative fra d v of such swinglng movement of said edge gage,

means 'fsf' varying .um normal; Operating range ef said gage, and.` means leasing said 'st'op to permits'ald'edge gage to n swing sentadas' banaal epefaajv@ range when ic' angie-f" the Seeing ofthe 'maas .y

for varying vthel normal 'bperative rangeof swiagingmeveaene f 'Said edge gage;

Ia a Sewing machine, a Stecher head, a eea slide, ai @ai supper@ an awl spaced mais 'said aaehahea, mme fer seeming said awl to said awl support, an edge n niiite'd on said'stit'c'her head for swinging -ilvmeiit vtowards `and away from said stitclerhd in' the space between'said awl was@ @tiene had ada-@fes Sada- 51 seclurmg means; lmeans fr limiting tlie nbr f1.0 Y

mal operative range of such swinging. move` nient of said'edge gage tothe spacebetween ysaid' 's'tithei head and said awl, adme'an's of' releasing said .l's't mentioned means to permit said edge"gage to swing beyond its iiormalperativ iangeo'f swinging nieve` In niac a stitelier head; 'y y a 'feed slide, ari awl'spac'ed from said stitclier i head,- 'an edge gage mounted onsaid stitche'rl hiead` fer' svvi-iiiiigI inni/ement between and tdwds vand au'ayy .fromy saidawl and' said stitchei" h'ad;- i`1ie'ans `for lir'nitingy the normal operative range of suchswinging movement effi-saidv edge yg-'a'getotlie' space betwen'p'said Y stitcher head andl said awl; andl me'aisfor releasing said mentioned-means to permitsaid edge gage to swing beyond its noi`- mal o erative range.y f

9. n edge gage for a sewing machine com- A prisinga bracket adapted 'to be secured to said machine, a lever journale'd in said bracket, an edge gage mounted on one arm of said lever, ablock slida'bly mounted in the other arm of said lever, and a crank shaftthe blockV in said other arm' of said lever. Y.

e 10.' `An edge .gageforA a sewing `machine A comprisinga bracket adapted yto besecured 'to saidfmachinefa lever journaledein said bracket, an edge gage mounted on one arm offsaid lever, a crank vshaft journaled in said bracket and havinga crankpin operatively engaging the other arm'ofy said lever, a hand lever adjustably secured to said crank shaft,

annularly spaced faces on said hand lever for limiting the swingingkmovement of sald hand lever in bothy directions. v f

and -a releasable stopv pincooperating with rio f in; journaledfinsaid bracket and having a crank I 'pinoperatively engaging 11. An edge gage ,for aV sewing machine comprising a bracket adapted to be secured to said machine, a lever journaled. in said bracket, an edge gage mounted on one arm of said lever, a crank shaft journaled in said bracket and having a crank pin operatively engaging the other arm of said lever, a hand lever adjustably secured to said crankshaft, a stop pin Jfor limiting the swinging movement of said hand lever, and means for rendering said stop pin inoperative.

12. An edge gage for a sewingmaehine comprising a bracket adapted to be secured to said machine, a lever journaled invsaid bracket, an edge Vgage mounted von one arm of said lever, a crank shaft journaled in said bracket and having a crank pin operatively engaging the other arm of said lever, a hand lever adjustably secured to said crank shaft, a stop pin for limitingthe swinging movement of said hand lever, means for rendering said stop pin inoperative, and means for preventing rotation of said crank shaft under the ordinary Working pressure on the edge gage. t t c 3. An edge gage for asewing machine comprising a bracket adapted to be secured to said machine, a lever journaled in said bracket, an edge gage mounted on vone arm of said lever, a crank shaft journaled 4in said bracket and havinga crank pinoperatively engaging the other arm of said lever, a hand lever acljpustably secured to said crank shaft, a `stop pin for limitingthe swinging movement of said hand lever, means for rendering said stop .pin inoperative, and friction,V means for preventing rotation of said crank shaft under the ordinary Working pressure on the edge gage. Y Signed at St. Louis, Missouri, this ALth day of September,1931.

, Y HARRY-1W. KRAG. i 

